[78]*78Mr. Justice Reed
delivered the opinion of the Court.
The Hatch Act,
For many years before the Hatch Act the Congress had authorized the exclusion of federal employees in the competitive classified service from active participation in political management and political campaigns.4 In June, 1938, [80]*80the congressional authorization for exclusion had been made more effective by a Civil Service Commission dis-. ciplinary rule.5 That power to discipline members of. the competitive classified civil service continues in the Commission under the Hatch Act by virtue of the present applicability of the Executive Order No. 8705, March 5, 1941. The applicable Civil Service Commission rules are. [81]*81printed in the margin.6 The only change in the Civil Service Rules relating to political activity, caused by the Hatch Act legislation, that is of significance in this case is the elimination on March 5, 1941, of the word “privately” from the phrase “to express privately their opinions.” This limitation to private expression had regulated classified personnel since 1907.7
The present appellants sought an injunction before a statutory three-judge district court of the District of Co[82]*82lumbia against appellees, members of the United States Civil Service Commission, to prohibit them from enforcing against appellants the provisions of the second sentence of § 9 (a) of the Hatch Act for the reason that the sentence is repugnant to the Constitution of the United States.8 A declaratory judgment of the unconstitutionality of the sentence was also sought.9 The sentence referred to reads, “No officer or employee in the executive branch of the Federal Government . . . shall take any active part in political management or in political campaigns.”
Various individual employees of the federal executive civil service and the United Public Workers of America,10 a labor union with these and other executive employees as members, as a representative of all its members, joined in the suit. It is alleged that the individuals desire to engage in acts of political management and in political campaigns. Their purposes are as stated in the excerpt from the complaint set out in the margin.11 From the [83]*83affidavits it is plain, and we so assume, that these activities will be carried on completely outside of the hours of employment. Appellants challenge the second sentence of § 9 (a) as unconstitutional for various reasons. They are set out below in the language of the complaint.12
None of the appellants, except George P. Poole, has violated the provisions of the Hatch Act. They wish to act contrary to its provisions and those of § 1 of the Civil Service Rules and desire a declaration of the legally per[84]*84missible limits of regulation. Defendants moved to dismiss the complaint for lack of a justiciable case or controversy. The District Court determined that each of these individual appellants had an interest in their claimed privilege of engaging in political activities, sufficient to give them a right to maintain this suit. United Federal Workers of America (C. I. O.) v. Mitchell, 56 F. Supp. 621, 624. The District Court further determined that the questioned provision of the Hatch Act was valid and that the complaint therefore failed to state a cause .of action. It accordingly dismissed the complaint and granted summary judgment to defendants.
First. The judgment of the District Court was entered on September 26, 1944. An order was duly entered on October 26, 1944, allowing an appeal. 28 U. S. C. § 380a. The same section of the statutes provides: “In the event that an appeal is taken under this section, the record shall be made up and the case docketed in the Supreme Court of the United States within sixty days from the time such appeal is allowed, under such rules as may be prescribed by the proper courts.” This appeal was not docketed in this Court until February 2, 1945, a date after the return date of the order under § 380a. Thereafter the Government suggested a lack of jurisdiction in this Court to consider the appeal because of the failure of appellants to docket the appeal in time. We postponed consideration of our jurisdiction over this appeal to the hearing. We proceed now to a disposition of this question.
To comply with the suggestion of § 380a, this Court adopted Rule 47.13 In other cases of appeals, Rule 11 [85]*85governs docketing.14 If Rule 11 applies also to appeals under § 380a, we may hear this appeal, for the steps for dismissal required by Rule 11 were not taken by the appellees. This is because upon the allowance of an appeal by a judge of the district court as here, Supreme Court Rules 10 and 36, the case, is transferred from the district court to this Court and subsequent steps for dismissal or affirmance are to be taken here.15 If, however, the above-quoted provision of § 380a as to docketing is a prerequisite to the power of this Court to review, this appeal must fail.
Prior to the passage of § 380a, appeals docketed after the return day were governed by Rule 11, 275 U. S. 602. In principle it has long been in existence.16 By the words of the rule, it appears that dismissal for appellant’s tardiness in docketing requires a step by the appellee. Even after dismissal for failure to docket, the rule permits this Court to allow the appellant to docket. Noth[86]*86ing in the legislative history which has been called to our attention indicates that Congress intended its docketing provision to vary Rule 11. Direct appeal accomplishes the congressional purpose of expediting review, of course, and is consistent with an unchanged practice as to dismissals. The time to docket may have been enlarged from the conventional return day of Rules 10 and 11 to bring continental uniformity, see Rule 10, or to give time for the preparation of a record which would often be large and not transcribed or printed. It will not expedite determination of constitutional questions to dismiss appeals because of errors of practice. In fact the sentence of § 380a on docketing seems deliberately to leave the practice on failure to docket to rules of court. We do not construe the requirement of docketing within sixty days as a limitation on our power to hear this appeal.
So far as our Rule 47 is concerned, we construe it as requiring in accordance with § 380a the docketing in sixty days from the allowance of the appeal, instead of the forty days of our Rule 10, and that, as to dismissals, the first sentence of Rule 47 requires the same practice for appeals under § 380a that Rule 11 does for other appeals. We think it desirable to have sufficient flexibility in the rule to permit extensions of the time for return in the unusual situations that occur when large records are involved. In view of the recognized congressional purpose to quicken review under § 380a, the discretion to delay final hearing allowed under Rule 11 will be exercised only on a definite showing of need therefor to assure fair review. This leads us to hear this appeal.17
[Second. At the threshold of consideration, we are called upon to decide whether the complaint states a controversy cognizable in this Court. We defer consideration of the cause of action of Mr. Poole until section Three of this [87]*87opinion. The other individual employees have elaborated the grounds of their objection in individual affidavits for use in the hearing on the summary judgment.] We select as an example one that contains the essential averments of all the others and print below the portions with significance in this suit.18 Nothing similar to the fourth para[88]*88graph of the printed affidavit is contained in the other affidavits. The assumed controversy between affiant and the Civil Service Commission as to affiant's right to act as watcher at the polls on November 2, 1943, had long been moot when this complaint was filed. We do not therefore treat this allegation separately. The affidavits, it will be noticed, follow the generality of purpose expressed by the complaint. See note 11 supra. declare a desire to act contrary to the rule against political activity but not that the rule has been violated. In this respect, we think they differ from the type of threat adjudicated in Railway Mail Association v. Corsi, 326 U. S. 88. In that case, the refusal to admit an applicant to membership in a labor union on account of race was involved. Admission had been refused. 326 U. S. at p. 93, note 10. Definite action had also been taken in Hill v. Florida, 325 U. S. 538. In the Hill case an injunction had been sought and allowed against Hill and the union forbidding Hill from acting as the business agent of, the union and the union from further functioning as a union until it complied with the state law. The threats which menaced the affiants of these affidavits in the case now being considered are closer to a general threat by officials to enforce those laws which they are charged to administer, compare Watson v. Buck, 313 U. S. 387, 400, than they are to the direct threat of punishment against a named organization for a completed act that made the Mail Association arid the Hill cases justiciable.]
[89]*89As is well known, the federal courts established pursuant to Article III of the Constitution do not render advisory opinions.19 For adjudication of constitutional issues, “concrete legal issues, presented in actual cases, not abstractions,” are requisite.20 This is as true of declaratory judgments as any other field.21 These appellants seem clearly to seek advisory opinions upon broad claims of rights protected by the 'First, Fifth, Ninth and Tenth Amendments to the Constitution. As these appellants are classified employees, they have a right superior to the generality of citizens, compare Fairchild v. Hughes, 258 U. S. 126, but the facts of their personal interest in their civil rights, of the general threat of possible interference with those rights by the Civil. Service Commission under its rules, if specified things are done by appellants, does not make a justiciable case or controversy. Appellants want to engage in “political management and political campaigns,” to persuade others to follow appellants’ views by discussion, speeches, articles and other acts reasonably designed to secure the selection of appellants’ political choices. Such generality of objection is really an attack on the political expediency of the Hatch Act, not the presentation of legal issues. It is beyond the competence of courts to render such a decision. Texas v. Interstate Commerce Commission, 258 U. S. 158, 162.
[The power of courts, and ultimately of this Court, to pass upon the constitutionality of acts of Congress arises [90]*90only when the interests of litigants require the use of this judicial authority for their protection against actual interference. A hypothetical threat is not enough. We can only speculate as to the kinds of political activity the appellants desire to engage in or as to the contents of their proposed public statements or the circumstances of their publication. It would not accord with judicial responsibility to adjudge, in a matter involving constitutionality, between the freedom of the individual and the requirements of public order except when definite rights appear upon the one side and definite prejudicial interferences upon the other.]22
The Constitution allots the nation’s judicial power to the federal courts. Unless these courts respect the limits of that unique authority, they intrude upon powers vested in the legislative or executive branches. Judicial adherence to the doctrine of the separation of powers preserves the courts for the decision of issues, between litigants, capable of effective determination. Judicial exposition upon political proposals is permissible only when necessary to decide definite issues between litigants. When the courts act continually within these constitutionally imposed boundaries of their power, their ability to perform their function as a balance for the people’s protection against abuse of power by other branches of government remains unimpaired. Should the courts seek to expand their power so as to bring under their jurisdiction ill-defined controversies over constitutional issues, they would [91]*91become the organ of political theories. Such abuse of judicial power would properly meet rebuke and restriction from other branches. By these mutual checks and balances by and between the branches of government, democracy undertakes to preserve the liberties of the people from excessive concentrations of authority. No threat of interference by the Commission with rights of these appellants appears beyond that implied by the existence of the law and the regulations. Watson v. Buck, supra, p. 400. We should not take judicial cognizance of the situation presented on the part of the appellants considered in this subdivision of the opinion. [These reasons lead us to conclude that the determination of the trial court, that the individual appellants, other than Poole, could maintain this action, was erroneous.]
[Third. The appellant Poole does present by the complaint and affidavit matters appropriate for judicial determination.23 The affidavits filed by appellees confirm that [92]*92Poole has been charged by the Commission with political activity and a proposed qrder for his removal from his position adopted subject to his right .under Commission procedure to reply to the charges and to present further evidence in refutation.24 We proceed to consider the controversy over constitutional power at issue between Poole and the Commission as defined .by the charge and preliminary finding upon one side and the admissions of Poole’s affidavit upon the other. Our determination is limited to those facts. This proceeding so limited meets the requirements of defined rights and a definite threat to interfere with a possessor of the menaced rights by a penalty for an act done in violation of the claimed restraint.25
[93]*93Because we conclude hereinafter that the prohibition of § 9 of the Hatch Act and Civil Service Rule 1,] see notes 2 and 6 abovedare valid, it is unnecessary to consider, as this is a declaratory judgment action, whether or not this appellant sufficiently alleges that an irreparable injury to him would result from his removal from his position.26 Nor need we inquire whether or not a court of equity would enforce by injunction any judgment declaring rights.27 Since Poole admits that he violated the rule against political activity and that, removal from office is therefore mandatory under the act, there is no question as to the exhaustion of administrative remedies. The act provides no administrative or statutory review for the order of the Civil Service Commission.] Compare Stark v. Wickard, 321 U. S. 288, 306-10; Macauley v. Waterman S. S. Corporation, 327 U. S. 540. [As no prior proceeding, offering an effective remedy or otherwise, is pending in the courts, there is no problem of judicial discretion as to whether to take cognizance of this case.] Brillhart v. Excess Insurance Co., 316 U. S. 491, 496-97, dissent at 500; Larson v. General Motors Corporation, 134 F. 2d 450, 453. [Under such circumstances, we see no reason why a declaratory judgment action, even though constitutional issues are involved, does not lie.] See Rules of Civil Procedure, Rule 57. Steele v. Louisville & Nashville Railroad Co., 323 U. S. 192, 197, 207; Tunstall v. Brotherhood of [94]*94Locomotive Firemen & Enginemen, 323 U. S. 210, 212, et seq.*
Fourth. [This brings us to consider the narrow but important point involved in Poole’s situation.28 Poole’s stated offense is taking an “active part in political management or in political campaigns.” He was a ward executive committeeman of a political party and was politically active on election day as a worker at the polls and a paymaster for the services of other party workers. The issue for decision and the only one we decide is whether such a breach of the Hatch Act and Rule 1 of the Commission can, without violating the Constitution, be made the basis for disciplinary action.]
When the issue is thus narrowed, the interference with free expression is seen in better proportion as compared with the requirements of orderly management of administrative personnel. Only while the employee is politically active, in the sense of Rule 1, must he withhold expression of opinion on public subjects. See note 6. We assume that Mr. Poole would be expected to comment publicly as committeeman on political matters, so that indirectly there is an attenuated interference. We accept appellants’ contention that the nature of political rights reserved to the people by the Ninth and Tenth Amendments are involved. The right claimed as inviolate may be stated as the right of a citizen to act as a party official or worker to further his own political views. Thus we [95]*95have a measure of interference by the Hatch Act and the Rules with what otherwise would be the freedom of the civil servant under the First, Ninth and Tenth Amendments. And, if we look upon due process as a guarantee of freedom in those fields, there is a corresponding impairment of that right under the Fifth Amendment. Appellants' objections under the Amendments are basically the same.
We do not find persuasion in appellants' argument that such activities during free time are not subject to regulation even though admittedly political activities cannot be indulged in during working hours.29 The influence of political activity by government employees, if evil in its effects on the service, the employees or people dealing with them, is hardly less so because that activity takes place after hours. Of course, the question of the need for this regulation is for other branches of government rather than the courts. Our duty in this case ends if the Hatch Act provision under examination is constitutional.
Of course, it is accepted constitutional doctrine that these fundamental human rights are not absolutes. The requirements of residence and age must be met. The essential rights of the First Amendment in some instances are subject to the elemental need for order without which the guarantees of civil rights to others would be a mockery.30 The powers granted by the Constitution to the [96]*96Federal Government are subtracted from the totality of sovereignty originally in the states and the people. Therefore, when objection is made that the exercise of a federal power infringes upon rights reserved by the Ninth and Tenth Amendments, the inquiry must be directed toward the granted power under which the action of the Union was taken. If granted power is found, necessarily the objection of invasion of those rights, reserved by the Ninth and Tenth Amendments, must fail. Again this Court must balance the extent of the guarantees of freedom against a congressional enactment to protect a democratic society against the supposed evil of political partisanship by classified employees of government.
As pointed out hereinbefore in this opinion, the practice of excluding classified employees from party offices and personal political activity at the polls has been in effect for several decades. Some incidents similar to those that are under examination here have been before this Court and the prohibition against certain types of political activity by officeholders has been upheld. The leading case was decided in 1882. Ex parte Curtis, 106 U. S. 371. There a subordinate United States employee was indicted for violation of an act that forbade employees who were not appointed by the President and confirmed by the Senate from giving or receiving money for political purposes from or to other employees of the government on penalty of discharge and criminal punishment. Curtis urged that the statute was unconstitutional. This Court upheld the right of Congress to punish the infraction of this law. The decisive principle was the power of Congress, within reasonable limits, to regulate, so far as it might deem necessary, the political conduct of its employees. A list of prohibitions against acts by public officials that are permitted to other citizens was given. This Court said, p. 373:
“The evident purpose of Congress in all this class of enactments has been to promote efficiency and [97]*97integrity in the discharge of official duties, and to maintain proper discipline in the public service. Clearly such a purpose is within the just scope of legislative power, and it is not easy to see why the act now under consideration does not come fairly within the legitimate means to such an end.”
The right to contribute money through fellow employees to advance the contributor’s political theories was held not to be protected by any constitutional provision. It was held subject to regulation. A dissent by Mr. Justice Bradley emphasized the broad basis of the Court’s opinion. He contended that a citizen’s right to promote his political views could not be so restricted merely because he was an official of government.31
No other member of the Court joined in this dissent. The conclusion of the Court, that there was no constitutional bar to regulation of such financial contributions of public servants as distinguished from the exercise of political privileges such as the ballot, has found acceptance in the subsequent practice of Congress and the growth of the principle of required political neutrality for classified public servants as a sound element for efficiency.32 The con[98]*98viction that an actively partisan governmental personnel threatens good administration has deepened since Ex parte Curtis. Congress recognizes danger to the service in that political rather than official effort may earn advancement and to the public in that governmental favor may be channeled through political connections.33
In United States v. Wurzbach, 280 U. S. 396, the doctrine of legislative power over actions of governmental officials was held valid when extended to members of Congress. The members of Congress were prohibited from receiving contributions for “any political purpose whatever” from any other federal employees. Private citizens were not affected. The argument of unconstitutionality because of interference with the political rights of a citizen by that time was dismissed in a sentence. Compare United States v. Thayer, 209 U. S. 39.
The provisions of § 9 of the Hatch Act and the Civil Service Rule 1 are not dissimilar in purpose from the statutes against political contributions of money. The prohibitions now under discussion are directed at political contributions of energy by government employees. [99]*99These contributions, too, have a long background of disapproval.34 Congress and the President are responsible for an efficient public service. If, in their judgment, efficiency may be best obtained by prohibiting active participation by classified employees in politics as party officers or workers, we see no constitutional objection.35
Another Congress may determine that, on the whole, limitations on active political management by federal personnel are unwise. The teaching, of experience has evidently led Congress to enact the Hatch Act provisions. To declare that the present supposed evils of political activity are beyond the power of Congress to redress would leave the nation impotent to deal with what many sincere men believe is a material threat to the democratic system. Congress is not politically naive or regardless of public welfare or that of the employees. It leaves untouched full participation by employees in political decisions at the ballot box and forbids only the partisan activity of federal personnel deemed offensive to efficiency. With that limitation only, employees may make their contributions to public affairs or protect their own interests, as before the passage of the Act.
[100]*100The argument that political neutrality is not indispensable to a merit system for federal employees may be accepted. But because it is not indispensable does not mean that it is not desirable or permissible. Modern American politics involves organized political parties. Many classifications of government employees have been accustomed to work in politics—national, state and local— as a matter of principle or to assure their tenure. Congress may reasonably desire to limit party activity of federal employees so as to avoid a tendency toward a one-party system. It may have considered that parties would be more truly devoted to the public welfare if public servants were not overactive politically.
Appellants urge that federal employees are protected by the Bill of Rights and that Congress may not “enact a regulation providing that no Republican, Jew or Negro shall be appointed to federal office, or that no federal employee shall attend Mass or take any active part in missionary work.” None would deny such limitations on congressional power but, because there are some limitations, it does not follow that a prohibition against acting as ward leader or worker at the polls is invalid. A reading of the Act and Rule 1, notes 2 and 6, supra, together with the Commission’s determination36 shows the wide range of public activities with which there is no interference by the legislation. It is only partisan political activity that is interdicted. It is active participation in political management and political campaigns. Expressions, public or private, on public affairs, personalities and matters of public interest, not an objective of party action, are unrestricted by law so long as the government employee does not direct his activities toward party success.
It is urged, however, that Congress has gone further [101]*101than necessary in prohibiting political activity to all types of classified employees. It is pointed out by appellants “that the impartiality of many of these is a matter of complete indifference to the effective performance” of their duties.37 Mr.;Poole would appear to be a good illustration for appellants' argument. The complaint states that he is a roller in the mint. We take it this is a job calling for the qualities of a skilled mechanic and that it does not involve contact with the public. Nevertheless, if in free time he is engaged in political activity, Congress may have concluded that the activity may promote or retard his advancement or preferment with his superiors. Congress may have thought that government employees are handy elements for leaders in political policy to use in building a political machine. For regulation of employees it is not necessary that the act regulated be anything more than an act reasonably deemed by Congress to interfere with the efficiency of the public service. There are hundreds of thousands of United States employees with positions no more influential upon policy determination than that of Mr. Poole. Evidently what Congress feared was the cumulative effect on employee morale of political activity by all employees who could be induced to participate actively. It does not seem to us an unconstitutional basis for legislation.
[102]*102There is a suggestion that administrative workers maybe barred, constitutionally, from political management and political campaigns while the industrial workers may not be barred, constitutionally, without an act “narrowly and selectively drawn to define and punish the specific conduct.” A ready answer, it seems to us, lies in the fact that the prohibition of § 9 (a) of the Hatch Act “applies without discrimination to all employees whether industrial or administrative” and that the Civil Service Rules, by § 15 made a part of the Hatch Act, makes clear that industrial workers are covered in the prohibition against political activity. Congress has determined that the presence of government employees, whether industrial or administrative, in the ranks of political party workers is bad. Whatever differences there may be between administrative employees of the government and industrial workers in its employ are differences in detail so far as the constitutional power under review is concerned. Whether there are such differences and what weight to attach to them, are all matters of detail for Congress. We do not know whether the number of federal employees will expand or contract; whether the need for regulation of their political activities will increase or diminish. The use of the constitutional power of regulation is for Congress, not for the courts.
We have said that Congress may regulate the political conduct of government employees “within reasonable limits,” even though the regulation trenches to some extent upon unfettered political action. The determination of the extent to which political activities of governmental employees shall be regulated lies primarily with Congress. Courts will interfere only when such regulation passes beyond the generally existing conception of governmental power. That conception develops from practice, history, and changing educational, social and economic conditions. The regulation of such activities as Poole carried on has [103]*103the approval of long practice by the Commission, court decisions upon similar problems and a large body of informed public opinion. Congress and the administrative agencies have authority over the discipline and efficiency of the public service. When actions of civil servants in the judgment of Congress menace the integrity and the competency of the service, legislation to forestall such danger and adequate to maintain its usefulness is’required. The Hatch Act is the answer of Congress to this need. We cannot say with such a background that these restrictions are unconstitutional.
Section 15 of the Hatch Act, note 3 above, defines an active part in political management or political campaigns as the same activities that the United States Civil Service Commission has determined to be prohibited to classified civil service employees by the provisions of the Civil Service Rules when § 15 took effect July 19, 1940. 54 Stat. 767. The activities of Mr. Poole, as ward executive committeeman and a worker at the polls, obviously fall within the prohibitions of § 9 of the Hatch Act against taking an active part in political management and political campaigns. They are also covered by the prior determinations of the Commission.38 We need to examine no fur[104]*104ther at this time into the validity of the definition of political activity and § 15.39
The judgment of the District Court is accordingly
Affirmed.
Mb. Justice Murphy and Mr. Justice Jackson took no part in the consideration or decision of this case.
Mr. Justice Rutledge dissents as to Poole for the reasons stated by Mr. Justice Black. He does not pass upon the constitutional questions presented by the other appellants for the reason that he feels the controversy as to them is not yet appropriate for the discretionary exercise of declaratory judgment jurisdiction.
Another controversy under the same act is decided today. Oklahoma v. United States Civil Service Commission, post, p. 127.